/* * 1.19 02/25/98 * * Copyright (c) 1995-1997 Sun Microsystems, Inc. All Rights Reserved. * * This software is the confidential and proprietary information of Sun * Microsystems, Inc. ("Confidential Information"). You shall not * disclose such Confidential Information and shall use it only in * accordance with the terms of the license agreement you entered into * with Sun. * * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE * SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR * PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES * SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING * THIS SOFTWARE OR ITS DERIVATIVES. * * CopyrightVersion 1.0 */ import java.io.*; import java.util.*; import javax.servlet.*; import javax.servlet.http.*; /** * Snoop servlet. This servlet simply echos back the request line and * headers that were sent by the client, plus any HTTPS information * which is accessible. * * @version 1.19 98/02/25 * @author David Connelly */ public class SnoopServlet extends HttpServlet { public void doPost (HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException { //value chosen to limit denial of service if (req.getContentLength() > 8*1024) { res.setContentType("text/html"); PrintWriter out = res.getWriter(); out.println("
"); out.println (HttpUtils.getRequestURL (req).toString ()); out.println(""); Enumeration enum = getServletConfig().getInitParameterNames(); if (enum != null) { boolean first = true; while (enum.hasMoreElements()) { if (first) { out.println("
"); first = false; } String param = (String) enum.nextElement(); out.println(" "+param+": "+getInitParameter(param)); } out.println(""); } out.println("
"); print(out, "Request method", req.getMethod()); print(out, "Request URI", req.getRequestURI()); print(out, "Request protocol", req.getProtocol()); print(out, "Servlet path", req.getServletPath()); print(out, "Path info", req.getPathInfo()); print(out, "Path translated", req.getPathTranslated()); print(out, "Query string", req.getQueryString()); print(out, "Content length", req.getContentLength()); print(out, "Content type", req.getContentType()); print(out, "Server name", req.getServerName()); print(out, "Server port", req.getServerPort()); print(out, "Remote user", req.getRemoteUser()); print(out, "Remote address", req.getRemoteAddr()); print(out, "Remote host", req.getRemoteHost()); print(out, "Authorization scheme", req.getAuthType()); out.println(""); Enumeration e = req.getHeaderNames(); if (e.hasMoreElements()) { out.println("
"); while (e.hasMoreElements()) { String name = (String)e.nextElement(); out.println(" " + name + ": " + req.getHeader(name)); } out.println(""); } e = req.getParameterNames(); if (e.hasMoreElements()) { out.println("
"); while (e.hasMoreElements()) { String name = (String)e.nextElement(); out.println(" " + name + " = " + req.getParameter(name)); } out.println(""); } e = req.getParameterNames(); if (e.hasMoreElements()) { out.println("
"); while (e.hasMoreElements()) { String name = (String)e.nextElement(); String vals[] = (String []) req.getParameterValues(name); if (vals != null) { out.print(" " + name + " = "); out.println(vals[0]); for (int i = 1; i"); } String charset = res.getCharacterEncoding (); out.println (""); } out.println("
"); out.println ("MIME character encoding: " + charset); out.println (""); out.println(""); } private void print(PrintWriter out, String name, String value) throws IOException { out.print(" " + name + ": "); out.println(value == null ? "<none>" : value); } private void print(PrintWriter out, String name, int value) throws IOException { out.print(" " + name + ": "); if (value == -1) { out.println("<none>"); } else { out.println(value); } } public String getServletInfo() { return "A servlet that shows the request headers sent by the client"; } }